Pump lock for gasoline-vending machines



Oct. 29, 1929; J, w, JOHNSON 1,733,195

PUMP LOOK FOR GASOLINE VENDING MACHINES Original Filed Dec. 22, 1925 amvwmtoz Patented Get. 29, 1929 UNITED STATES.

.ioHNw. JoHivsoN, or VBLUEFAIELD, WEST VIRGINIA PUMP LOCK FOR GASOLINE-VENDING MACHINES Application filed December 22, 1925, Seria1 No.7'Z ,036.' Renewed March 22, 1929.

This invention relates to vending machines.

and more particularly liquid vendingma chines especially designed'for vendinggasoline or the like. v

5 The primary object of the invention is to provide a vending machine of this character which is of the check or coin-controlled type, to the end that an attendant is unnecessary for the operation of the pump or vending machine.

d An important object of the invention is the provision of means to lock the pump out of operation while gasoline or the liquid contained in the machine, is being drawn from the measuring tank forming a part thereof.

A further object of the invention is to provide means for locking the pump against movement simultaneously with the movement of the valve to release the fluid in the measuring tank.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosechniay be made within the scope of what is claimed, without departing so from the spirit of the invention.

Referring to the drawings:

Figure 1 is a vertical fragmental sectional view through the controlling mechanism of the machine.

Figure 2 is a sectional View taken on line 22 of Figure 1.

Referring to the drawing in detail, the reference character 6 designates the body portion into which the pipe 10 extends and which communicates with the manifold 15 which extends transversely of the machine. The valves 16 connect therewith and have valve seats 16 formed therein, which valve seats are adapted to be engaged by the washers 17 carried by the valve members 18. In connection with the foregoing it might be stated that while there is only one valve and operating mechanism illustrated, in the drawings, it is to be understood that there may be several of these valve members employed and designed to allow various quantities of gasoline to pass from the measuring receptacle. The valve member includes a cage 19 so that whenthe valve member is forced inwardly in a manner-to be hereinafter more fully described, fluid may flow through the cage and into the discharge pipe and hose of the machine. I

Associated with the valve member is a coiled 'sprin 20 that is positioned within the removable cap 21 and is designed to normally urge the valve member 18 to its closed position. A stem 22 forms a part of the valve and passes-through one wall ofthe manifold, the

connection between'the stem and manifold beingmade fluid-tight by means ofthegasket *Operating'in thebody portion of the machine-is a pump which'may be of any appropriate type, the same being supported within-the pumphousing 24 and carried on the shaft 25 to which the operating'handle 2G is secured, to the end that'as the handle 26 is rotated, fluid will be drawn into the pump housing through pipe 27- and forced upwardly tlirouglrpipe 28, to the measuring receptacle. The locking device includes a disk 29 that is mounted on the shaft 25 and as illustrated by: Figure 9 of the drawings, the disk 29 is" provided with a plurality of spaced openings 30' which areofdiameters to receive the finger 31 carried on the arm 32 of the bell crank lever] 33,'-tl1ere being provided a coiled spring 34for normallyholding the finger 31 to a position as shown by Figure 6 or its inactive positionw' 1 Gonnectedwith the bell crank lever 33 is anarm 35, which arm is connected with the armf36 bymeans of the substantially rigid spring memb'er37 so that movement of the arm 36 will be transmitted to the arm 35 through the spring member 37, but it is to be understood that the action of the spring 37 will be suflicient to urge the .bell crank lever to anactive position by overcoming the tension ofthe spring 34. r

Extending inwardly from the body portion is a support-38 towhich the bell crank lever 39 is-pivotally connected, the bell crank lever 39 having 'one arm extending upwardly as shown by-Figure 6 tonormally lie inthe path of travel of the sliding plate carried by the plunger 41 that is designed to engage the valve stem 22 when the plunger is forced inwardly, to open the valve 18.

Formed in the plate 40 is a curved out out portion 42 formed with relatively straight portions 43 at its ends defining a shoulder 44 at its upper end, which shoulder 44 is adapted to engage the locking arm 45 that is pivotally mounted within the casing or body portion at 46.

The mounting 46 includes a collar 47 which is provided with a sleeve 48 and a sleeve 49, which sleeves are substantially square for the reception of the locking arm 45 and the arm 50, the latter arm acting as a support for the adjustable weight 51 employed as a counterbalance for the arm 45.

A coiled spring indicated at 56 has one end thereof anchored to the body portion as at 57 the opposite end thereof being connected with the plate 40 at 58 so that the plunger 41 and plate 40 are normally urged to their inactive positions or positions as shown by Figure 1.

The operating lever for the plunger 41 is indicated at 59 and has connection with the plunger 41 at 60, there being provided a link 61 connected with the upwardly extended arm 62 of the lever 59 so that a downward movement of the lever 59 will force the plunger 41 inwardly, that is when the locking arm 45 has been moved to its inactive position.

In the construction of the device, it is contemplated to employ at least two of the valves so that for example a dollars worth or fifty cents worth of gasoline may be dispensed from the machine, depending on the coin dropped into the machine.

In the operation of the machine, the person wishing to obtain for example, fifty cents worth of gasoline, deposits a fifty cent piece in the coin chute, designed to receive a coin of this character. The operator or person buying the gasoline now rotates the handle 26 to fill a measuring receptacle.

When the receptacle becomes filled the lever 59 is forced downwardly, it being understood that the arm 45 has been moved out of contact with shoulder 44, by weight of the coin forced therein. As the lever 59 moves downwardly, the plunger 41 moves inwardly carrying with it the plate 40 which contacts With the valve stem 22 opening the valve 18 and allowing the quantity of gasoline to flow into the manifold and into the hose of the machine which directs the same to the tank or receptacle being filled.

Simultaneously with the movement of the valve stem 22, the bell crank lever 39 is operated, to move the arms 35 and 36 through the spring 37 to cause the bell crank lever 33 to move the finger 31 into one of the openings 30 of the locking disk 29, to the end that the shaft 25 and handle 26 that operate the pump will be held in their inactive positions, theredevices may be employed within the scope by preventing the person buying the gasoline from operating the pump, while the gasoline islz being drawn from the measuring receptac e.

It i obvious that when the lever 59 is released, the plunger 41 and plate 40 will be returnedto their inactive positions and the locking finger 31 withdrawn from the opening in which it is positioned.

It might be further stated that should the finger 31 contact with the locking disk 29, at a point between openings thereof, and the. plunger 41 and plate 40 have been moved inwardly to operate the valve, the spring 37 is placed under tension, to the end that upon movement of the handle 26, the finger 31 will be forced into the opening adjacent thereto to lock the disk and elements connected therewith against movement.

From the foregoing it will be seen that the purchaser pumps his gasoline, and when the glass container is full to the overflow level, the superfluous fluid will run back into the main storage tank to the end that a certain quantity of fluid may be dispensed.

While a particular form of locking device has been shown and described, itis to be understood that other forms of locking of the invention.

I claim In a gasoline vending machine, a rotary pump shaft, a disk on the rotary pump shaft, said disk having a plurality of openings formed therein, a bell crank lever having a finger, supported adjacent to the disk, said finger adapted to pass into one of the openings of the disk to lock the disk against movement, a valve controlling member, a bell crank lever to be engaged by the valve controlling member to move the last mentioned bell crank lever, and means including a spring for connecting the bell crank levers;

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature.

JOHN W. JOHNSON. 

